The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 06, 2026

Filed:

Jan. 25, 2024
Applicant:

Voltafield Technology Corporation, Jhubei City, TW;

Inventors:

Nai-Chung Fu, Jhubei City, TW;

Chih-Chao Shih, Jhubei City, TW;

Ming-Yu Kuo, Jhubei City, TW;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01R 15/20 (2006.01);
U.S. Cl.
CPC ...
G01R 15/207 (2013.01);
Abstract

The present invention provides a residual current detection device comprising a first conductive wire, a second conductive wire, a first magnetic concentrator and a magnetic sensing device wherein the first conductive wire generates a first magnetic field, the second conductive wire is arranged at one side of the first conductive wire for generating a second magnetic field, the first magnetic concentrator is arranged between the first and second conductive wires whereby a highly concentrated magnetic field area is formed between the first and second conductive wires, and the magnetic sensing device is arranged in the highly concentrated magnetic field area for detecting the first and second magnetic fields.


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